21698908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{70451}}^1$

素因数の和:70473

約数の個数: 24

約数和(自身を含む): 47343744

約数和(自身を除く): 25644836

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 70451, 140902, 281804, 493157, 774961, 986314, 1549922, 1972628, 3099844, 5424727, 10849454, 21698908]

約数ペア:

[(1, 21698908), (2, 10849454), (4, 5424727), (7, 3099844), (11, 1972628), (14, 1549922), (22, 986314), (28, 774961), (44, 493157), (77, 281804), (154, 140902), (308, 70451)]